Abben said Monday the process could take up to three days, but may be done more quickly due to the recent drought. Officials today blocked off public access around the lake, an increased security measure after they initially only cordoned off the area on the southeast side of the lake where the girls' bikes were found.
Robert Carpenter, an Evansdale resident who lives only blocks from the lake, said he saw the girls riding their bikes on Friday afternoon between 12 and 1 p.m. when he was outside watering his yard.
"Just like a normal day. They just come riding by on their bikes and said hi and that's the last thing I heard from them," Carpenter said.
The girls were last seen by their grandmother around 12:15 p.m. When Heather Collins returned home at 2 p.m., they had still not returned. She drove to the police station 45 minutes laterto alert authorities that the girls were missing.
For a town of only 5,000 people, a place frequently described by residents as safe, the girls' disappearance has been hard to understand. Barbara White's 6-year old daughter Tierra usually plays with Lyric and Elizabeth, but was not with them last Friday.
"Scared that she might have ventured off with them at the same time," White said. "I just want them to come home. I don't know what to think, it's a mystery. We have nothing to go on. They're just gone."
Now, she said, her arms around Tierra, "[you] just want to hold your kids a little bit closer."
As the search continues, Elizabeth and Lyric's parents are hopeful that more people will come forward with information about the girls' disappearance.
"We know somebody out there knows something that they could share, so if [there are] any leads or if somebody saw something strange they just need to come forward even if it's something that they might think is nothing," Drew Collins said.